Color

#40e2b7

#40e2b7
hex#40e2b7
rgbrgb(64, 226, 183)
hslhsl(164, 74%, 57%)
oklchoklch(0.82 0.145 170.7)
Closest name: Aquamarine (#2ee8bb)Relative luminance 0.589

Colors that go with #40e2b7

Charcoal, Blue and Crimson lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#e2406b

#40e266 · #40bde2

#b740e2 · #e2b740

Split-complementary

Open in tool →

#e240bd · #e26640

#6640e2 · #e2406b · #bde240

Contrast

#40e2b7 as textRatioAAAA largeAAAFix
Aaon white
1.64:1failfailfail
  • AA: use #148567 as the text (4.58:1)
  • AAA: use #0f624b as the text (7.32:1)
  • AA: or shift the background to #545454 (4.61:1)
  • AAA: or shift the background to #383838 (7.14:1)
Aaon black
12.78:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40e2b7 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #40e2b7
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #40e2b7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40e2b7-a2beba-d459b5-1f2b2d-e9f1eb?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md